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. 2019 Jul 12;13:155. doi: 10.3389/fnbeh.2019.00155

Figure 2.

Figure 2

Five seconds onset asynchrony between an odorant blend B and a following unknown odorant A improves odor segregation. (A) Valve states for creating odorant pulses for the asynchronous mixture B5A and the synchronous mixture AB. For B5A, A turned on 5 s after B (gray). A was presented for 7 s. B ended 3 s after A ended. The black bar indicates the 4 s when the sucrose reward was given. For AB, both A and the background B (gray) were turned on synchronously. (B) Each bee received five rewarded training trials either with B5A (orange) or AB (green). Percentage of bees responding to only A (dotted line), only A or to both A and B within the same trial (dashed line), and to A and/or B (solid line). N = 44 bees conditioned to B5A and 48 bees conditioned to AB. (C) During the two test trials, bees were stimulated with A or a novel odorant N. Percentage of response to A and to N for bees conditioned to B5A (orange) and bees conditioned to AB (green). Points represent means and vertical lines represent 95% credible intervals for all panels in this figure. Stars indicate significant differences between means for all panels in this figure (*probability for a difference between both means p > 0.95; ***p > 0.999). (D) Percentage of correctly responding bees during the test (response to A but not to N) for bees conditioned to B5A (orange) and A (green). (E) Same as in (A), but for B1A. A turned on 1 s after B. (F) Same as in (B), but for B1A as asynchronous mixture. Separate responses to A and B were not distinguishable. N = 40 bees conditioned to B1A and 42 bees conditioned to AB. (G) Same as in (C), but for B1A. (H) Same as in (D), but for B1A. (I) Same as in (A), but for B0.2A. A turned on 0.2 s after B. (J) Same as in (F), but for B0.2A as asynchronous mixture. N = 23 bees conditioned to B0.2A and 23 bees conditioned to AB. (K) Same as in (C), but for B0.2A. (L) Same as in (D), but for B0.2A. (M) Same as in (A), but for A0.2B. A turned on 0.2 s before B. (N) Same as in (F), but for A0.2B as asynchronous mixture. N = 60 bees conditioned to A0.2B and 62 bees conditioned to AB. (O) Same as in (C), but for A0.2B. (P) Same as in (D), but for A0.2B.